DEFECTED — Ring-by-Ring Defect, Injection & Rectification Tracking for Tunnel Construction

DEFECTED is the audit-ready quality management system built exclusively for tunnel contractors. Track lining defects, grout injections, and rectification works ring by ring — from any device, on any site, even without internet.

Built for tunnel construction teams

DEFECTED replaces paper-based defect registers and spreadsheets with a purpose-built mobile app for underground construction. Currently live on Sydney Metro.

Key features

Ring-by-ring defect logging for tunnel lining inspections
Injection tracking — record grout type, volume, pressure and location per ring
Rectification management — assign, track and sign off remedial works
Offline-first — works underground with no connectivity, syncs when back online
Audit-ready exports — generate compliant reports instantly for client sign-off
Real-time dashboards — live project quality overview for site and office teams
Photo documentation — attach images to each defect or injection record

Who uses DEFECTED

Tunnel contractors, underground construction quality managers, site engineers, and project managers working on metro rail, road tunnels, utility tunnels, and underground infrastructure projects.

Try DEFECTED free for 14 days

Start a free 14-day pilot on one heading — no credit card required. See how DEFECTED transforms your tunnel quality process from day one.

Start your free 14-day trial at tunneltracker.io

Tunnel construction defect tracking — why it matters

Managing defects, injections and rectifications in tunnel construction is complex. Each ring must be individually inspected, documented and signed off. DEFECTED makes this process digital, fast and audit-ready — replacing the paper registers and Excel sheets that slow down tunnel quality teams.

Contact

Available at tunneltracker.io — the ring-by-ring quality system for tunnel contractors.